Assessing Left Ventricular Performance
نویسندگان
چکیده
منابع مشابه
Assessing left ventricular performance: a rashomon effect.
The physiology of conduit arteries can be approximated noninvasively. One simple method to estimate arterial load is by computation of effective arterial elastance (Ea). Ea incorporates the steady component (peripheral resistance) and the pulsatile components of arterial load, including total arterial compliance and aortic characteristic impedance. Invasive studies and simulations have shown th...
متن کاملLeft Ventricular Diastolic Performance
We used first-pass radionuclide angiocardiography to assess filling fraction during the first third of diastole, peak filling rate and peak filling rate during the first third of diastole as indexes of left ventricular diastolic performance at rest and after upright bicycle exercise in 32 normal patients and 68 patients with coronary artery disease. The mean filling fraction was unchanged from ...
متن کاملLeft Ventricular Performance
THLIE pharmacologic effects of digitalis preparations on the circulatory system have been the subject of numerous investigations in both animals and man. Recently, studies in dogs 1 and man,2' 3as well as experimental work on the proteins of the contractile element of heart muscle,4 have demonstrated that digitalis directly augments the force of myocardial contraction. Most investigations in ma...
متن کاملRegional Left Ventricular Performance
The relationship of abnormal regional myocardial performance to left ventricular (LV) function 2-12 months following transmural myocardial infarctfon was investigated in 25 patients by quantitative biplane angiocardiography. Abnormally contracting segments (ACS) (akinetic or dyskinetic) of the LV were identified in 24 patients. Their sites correlated with the electrocardiographic locations of i...
متن کاملVENTRICULAR PERFORMANCE Left ventricular filling dynamics : influence of left ventricular relaxation and left atrial pressure
Peak rapid filling rate (PRFR) is often used clinically as an index of left ventricular relaxation, i.e., of early diastolic function. This study tests the hypothesis that early filling rate is a function of the atrioventricular pressure difference and hence is influenced by the left atrial pressure as well as by the rate of left ventricular relaxation. As indexes, we chose the left atrial pres...
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ژورنال
عنوان ژورنال: Hypertension
سال: 2008
ISSN: 0194-911X,1524-4563
DOI: 10.1161/hypertensionaha.107.100222